Pith Number

pith:S5ISWXGF

pith:2025:S5ISWXGFCSO3PFU26R5OBNCEFA

not attested not anchored not stored refs pending

Exploring symbolic regression and genetic algorithms for astronomical object classification

Fabio R. Llorella, Jos\'e A. Cebri\'an

arxiv:2503.09220 v1 · 2025-03-12 · astro-ph.GA · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S5ISWXGFCSO3PFU26R5OBNCEFA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T10:30:34.059341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97512b5cc5149db7969af47ae0b4442807aa11e61c642dbdb1f81b9b40e46885

Aliases

arxiv: 2503.09220 · arxiv_version: 2503.09220v1 · doi: 10.48550/arxiv.2503.09220 · pith_short_12: S5ISWXGFCSO3 · pith_short_16: S5ISWXGFCSO3PFU2 · pith_short_8: S5ISWXGF

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/S5ISWXGFCSO3PFU26R5OBNCEFA \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 97512b5cc5149db7969af47ae0b4442807aa11e61c642dbdb1f81b9b40e46885

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cf1626c23edf0c37856bf9e82f2ab5950a470417a50ca2605731f8eb1c269fb",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-03-12T10:06:55Z",
    "title_canon_sha256": "f2d5f4b31a26ba83109c12420d41a0e4c068680fc83a2cc6c9eca5384cb74897"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.09220",
    "kind": "arxiv",
    "version": 1
  }
}